Valve.



J. A. COOHRAN.

VALVE.

APPLICATION FILED 212.21, 1912.

Patented Mar. 17, 1914.

Swmmkoz GMOWW ill STATES PAEN FlQE.

JAMES A. COCHRAN, 0F PITTSBURG, KANSAS.

VALVE.

moon 9.

Application filed February 21, 1912.

Specification of Letters Patent.

To all whom it may concern lie it known that I, James A, Coounan, a citizen of the United States, residing at Pittsburg, in the county of Crawford and State of Kansas, have invented new and useful Improvements in Valves, of which the following is a specification.

An object of the invention is to provide a valve, particularly adaptable for use on locomotive tanks to control the supply of water to the boiler ot the locomotive and prevent foreign substances entering the boiler of the locomotive with the water.

Among other features the invention e1nbodies a strainer casing secured within the locomotive tank and having mounted therein a valve member to which is pivotally connected a rod having an end thereof connected to an operating lever mounted on the locomotive tank and operable to actuate the said valve member to open or close the pipe for conveying the water from the locomotive tank to the boiler of the locomotive.

In the further disclosure of the invention, reference is to be had to the accompanying drawings constituting a part of this specitication, in which similar characters oi: reference denote corresponding parts in all the views, and in which Figure 1 is a fragmentary sectional view of a locomotive tank showing my device in side elevation thereon. Fig. 2 is an enlarged vertical sectional view taken through the casing, the valve, however, being shown in full lines and in open position. Fig. 3 is a similar vertical sectional view showing the valve in closed position.

Referring more particularly to the views, I provide a locomotive tank 10 having connected thereto a pipe 11, a suitable valve seat 12 being formed on the floor of the tank 10, adjacent the point of connection of the pipe 11 with the tank 10. Secured to the floor of the tank 10, to encircle the valve seat 12 is a strainer casing 13 having a series of perforations 1 1 and mounted to slide vertically within the casing 13 is a valve 15, comprising a valve body 16 having the lower end thereof beveled for engagement with the valve seat 12, the mentioned valve body 16 being provided with a reduced portion 17 adapted to receive a ring 18, the upper end of the valve body 16 terminating in a cross head 19 to which is pivotally connected the lower end of a rod 20, having the upper end thereof connected to an operating lever 21, mounted on the outer side of the tank 10. For the purpose of limiting the vertical movementoi. the valve 15 in the strainer casing 13, a. circular flange member is thrcadedly connected with the upper end ol the strainer casing .3 and is provided with a dcpeiuling circular flange 23, against which the valve '15 is adapted to abut so that the flange 23 will limit the upward 1novement of the valve, the upper end of the :as ing 13 being received between the depending flange 23 and the body or threaded portion of the llange n'iember 22.

Assuming that the valve is in lowermost position with the beveled portion 01 the 'alve body engaging the valve seat 12, when it is desired to permit the llow of water through the pipe 11, a downward pressure is exerted on the handle of the operating lever 21, thus moving the valve 15 vertically within the casing 13 to disengage the lower beveled portion of the valve -l'rom the valve seat. As the water passes through the perforations 14: of the strainer casing 13, any 'l'oreign substances contained in the water will be prevented from passing into the pipe 11 by the strainer casing, the perifcn'ations therein being sulliciently small to prevent various particles of coal from entering the pipe 11. it being well known that when foreign substances pass into the boiler 01 the locomotive they tend to form a scale 011 the inner side of the boiler easing. As mentioned heretofore, the flange member 22 will limit the upward movement of the valve 15 and by providing the ring 18 to extend a distance beyond the periphery oi the valve body 16, the -frictional engagement of the valve 15 with the inner side of the casing 13 will be greatly reduced and the valve can be conveniently and easily operated by actuatiug the lever 21.

I claim 1- In a valve, the combination with a perforated cylindrical strainer casing, of a valve seat formed at the lower end of the strainer casing and constituting a beveled wall of an entrance to the strainer casing, a valve mounted to slide vertically in the strainer casing. the said valve comprising a valve body having the lower portion thereof beveled for engagement with the beveled valve seat of the st ainer casing, the medial portion of said valve body being cylindrical, and provided with a reduced portion encircled by a ring, the upper end of the valve body terminating in a cross head, with the and limit the upward movement thereof, the said medial portion of the valve body form- E upper end of the said casing being received ing a circular guide for guiding the. valve in a circular groove formed in the said body in its movement in the casing, a rod flange member. 15 pivotally connected to the said cross head, In testimony whereof I affix my signature an operating lever connected to the said rod in presence of tWo Witnesses.

for oaeratinp' the valve body in the casing and a circulzrr flange member secured to JAMES OOOHRAN' upper end of the casing and having por- Vitnesses: It tlons 1)1O]6Ctl11g inwardly from the inner JAMES KORE,

Wall thereof to be engaged by the valve body 4 H. E. METOALF.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of ratente, Washington, D. G. 

